Guy Harris

If you want libpcap to deliver packets as soon as they arrive, you have to turn on immediate mode, and, in the general case, that means using `pcap_create()` and `pcap_activate()`...

[The current Single UNIX Specification page for awk](https://pubs.opengroup.org/onlinepubs/9699919799/utilities/awk.html) says > When an **ERE** token appears as an expression in any context other than as the right-hand of the '˜' or...

Try using the standard libpcap client and server code in [its GitHub repository](https://github.com/the-tcpdump-group/libpcap); file any issues found with that code in its Issues section.

This appears to be Linux. The code in libpcap to send packets on a Linux network interface is ``` if (handlep->ifindex == -1) { /* * We don't support sending...

> I called pcap_sendpacket send packet at isatap0 What value did `pcap_sendpacket()` return? > and send just an IP header What value does `pcap_linktype()` return when called with the `pcap_t`...

> I used libpcap version 1.5.3, no pcap_ linktype Sorry, I got the name wrong - it's `pcap_datalink()`, not `pcap_linktype()`. So what does `pcap_datalink()` return?

31 is `ERROR_GEN_FAILURE`. NT status codes that translate to `ERROR_GEN_FAILURE` include a bunch of "somebody wrote to executable memory" codes, `STATUS_WIM_NOT_BOOTABLE`, and `STATUS_UNSUCCESSFUL`, which is, I guess, the NT status...

One thing that could be done would be to have `pcap_init()` (introduced in 1.10) do whatever sanity checks are necessary to make sure things will work correctly and, if they...

Is this the same issue as #578? If a Wireguard tunnel reports an NdisMedium type that libpcap's pcap-npf maps to a DLT_ type that the libpcap pcap compiler doesn't fully...

And what was the filter expression? If, as per my guess in #578, a Wireguard interface has NDIS type `NdisMediumIP`, which maps to libpcap type `DLT_RAW`, while filter expressions that...